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New Battery for Laptop, Commissioning

05/29/2014 7:50 AM

i have replaced my laptop battery by a new one, because the old one is not charging properly and sometimes going empty suddenly. what is the procedure for using a new laptop battery? should we charge it fully for one or two days? then let it go empty? to recharge it again?

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#1

Re: new battery for laptop, commissioning

05/29/2014 8:06 AM

Here is the recommended procedure for breaking in a new laptop battery:

1. With the computer turned off and unplugged, insert the new battery into its proper slot.

2. Plug the power adapter in to the laptop and to a wall outlet, but do not turn on the power to the laptop.

3. Let the battery charge up overnight with the laptop turned off.

4. Once the battery is fully charged, leave the laptop powered on under battery power only until the battery runs down completely. The quickest way to do this is to make sure the screen saver and "hibernate" modes are turned off. You can also play a music CD or a DVD movie in order to use up the battery more quickly.

5. When the battery runs out the computer will shut off. Let the battery cool down for 20 to 30 minutes.

6. Recharge the battery again as in steps 1-3.

There are some techs that recommend going through 3 charge/discharge cycles as listed above for any new laptop battery. However, being practical, I know most people will not go to that much trouble. But just doing the process at least once will really help your battery to have a longer usable lifespan.

A couple of other tips:

  • If for some reason you won't be using the laptop at all for 30 days or longer, you should take the battery out of the laptop and store it in a cool, dry location. When you are ready to use it again, go through the charge/discharge cycle as described above.
  • These may seem obvious, but…don't drop the battery, don't try to open the battery case, don't expose it to extreme temperatures, and don't set it on fire.

And finally: If your laptop and/or battery come with specific instructions from the manufacturer on how to break in the battery or use it, those are probably more appropriate than my general guidelines.

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#3
In reply to #1

Re: new battery for laptop, commissioning

05/29/2014 9:25 AM

Let me help you with the proper credit for the work you published:

How to break in a new laptop battery - The Computer Tutor

Not sure this would be accurate for Li-ion batteries which don't like total discharge.

OP should seek advice for his battery type.

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#4
In reply to #3

Re: new battery for laptop, commissioning

05/29/2014 10:26 AM

Lyn is right, that treatise is likely old, based on NiMH battery technology, which could develop a "charge memory" if not fully discharged. New Li-ion batteries now used in most notebook PCs do NOT like to be fully discharged. So if this is a new replacement battery of an older PC design and it used a NiMH battery, then that procedure would be appropriate. But many new replacement batteries, despite the original design, are sold as "extended life" replacements and are, in fact, Li-ion.

The battery will say right on it what type it is, because they all must be disposed of properly, and their makeup determines that procedure. If your replacement came from a cheap Internet shopping site and does NOT provide that info, I would not use it, it might be dangerous.

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#6
In reply to #4

Re: new battery for laptop, commissioning

05/29/2014 10:06 PM

Not NiMH, NiCd. Deep-discharging NiMH batteries damage them irreparably.

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#7
In reply to #1

Re: new battery for laptop, commissioning

05/29/2014 10:45 PM

"These may seem obvious, but…don't drop the battery, don't try to open the battery case, don't expose it to extreme temperatures, and don't set it on fire."

Well, in the case of Sony batteries, Sony has once again spared us the trouble of setting their batteries on fire ourselves.

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#2

Re: new battery for laptop, commissioning

05/29/2014 8:29 AM

the new battery comes with instruction manual, if bought

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#5

Re: New Battery for Laptop, Commissioning

05/29/2014 1:38 PM

The notion that a laptop is such, is complete ****. 90% of people I know who use one have it plugged into a mains electrical outlet.

Using one on your lap is a good way to fry your personal bits. Battery life is terrible. They would be better termed as 'portable computers'. I'm typing on one right now. The battery is dead, so I just keep it plugged into the mains.

Sorry that none of that is answering your question, but it has some relevance.

You already have some good answers to help. All I can add is to suggest telephoning the manufacturers and asking them. Being a cynic, I'd suggest double-checking whatever they say because it's not in their interest to have people nt needing to buy new ones.

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#8

Re: New Battery for Laptop, Commissioning

05/29/2014 11:18 PM

Just use it. Fully charge it if you like before use. Lion are shipped with 30-60% charge to prolong shelf life.

There is a lot of rubbish around about Lithium batteries they essentially don't like heat or being left on charge forever. Otherwise just use it.

As said earlier, most "battery care" instructions are for older types such as NiCad or NiMh. Lion cells do not have "memory".

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#9

Re: New Battery for Laptop, Commissioning

05/30/2014 4:47 AM

Although I am not a fan of Sony as a company, as I find often that their products are too expensive and many are "protected" from repair other than from Sony themself (their products with a hard disk inside for example). I believe that their charging rules for a rechargeable battery are to my mind the best.

I have an old Sony Video camera and although it is only used on Battery (whereas Laptops are used on the mains and battery together), the batteries are over 8 years old (I have 4 that last the longest holiday with no mains!), none of them are showing their age.....careful charging is the key I feel.....also quality. ALSO, no charging while powered on!!! Significant I feel.

Firstly, it is fairly widely accepted by some that a modern laptop battery has basically a set number of recharges in it. The number is set by quality of manufacturing, the manufacturer, battery type and the way the user "uses it".

Some people (better informed than myself) believe generally that this number lies probably between 1000 and 2000 cycles......For which a number in the middle (1500), might fit say a laptop battery life if divided by say 3 power "ons" in a working day = 1500/3 = 500 days life. Say 260 days usage in a year = approximately 2 years before its "used up"!

I would NOT recommend a battery from another source other than the laptop manufacturer, as some are cheap Chinese "knock-offs" and could in a worst case condition catch fire...this has even been seen with "Original" batteries a few years ago!!!

You can further reduce the number of possible charge cycles by improper usage.

What is improper usage?

A charge cycle is a power on and a power off of the laptop, no matter how short/long. Naturally with battery inserted.

Leaving the battery in the laptop all the time with mains connected is a big mistake.

Only REALLY good laptops do not overcharge the battery, sorry I cannot tell you which ones, that would take me years of usage/tests and a lot of laptops. See my joke at the end of this post! Overcharging is the worst form of abuse there is for ANY battery or ANY chemistry....even LA car batteries.

Over warm, many laptops get too hot too quickly. This effectively "cooks" the battery (and the rest of the electronics). This is sometimes due to the air vents being partially or fully blocked by being used on a soft surface - bed, knees and the like. My Quad core Toshiba that I use now is the first laptop I have ever had that runs cool ALL THE TIME!!! Probably because it can do all the "work" that I require with 3 cores shut down (only a guess!) and the fan is properly dimensioned, but still quiet. I never get a hot knee, simply never.....Leaving laptop on a table near to the heating or in the sun is also not a good idea, on or off or charging.

My personal method is to ONLY insert and fully charge the battery when I know I am going to be away from the mains. Bad luck if that happens when you do not expect it. Thats life!!

If you are often on aircraft/trains etc., then expect to buy a battery more often than people like me, its part of the deal. Suck it up!!

Such traveling people really need (at least!) two batteries from day one. Not even a month later!! Make a good deal with the Laptop seller.....up front!!

I am of the opinion (only) that two batteries will, if carefully/correctly used will last FAR longer than 2 x 1 Battery.....my guess only is that it will equate to around the normal life (for you and THAT laptop, whatever that is!) of one battery x 3. Sorry, no proof…..just a thought/observation!

By the way, I have never had a problem with inserting/removing a battery while the laptop is switched on the mains, although many feel that it cold be bad!!! I am NOT saying that you do it though, your decision only.

Never leave the battery inserted while working with the mains is the single most important point above all others…..I mentioned it before.

Store the battery in the "low" charge condition when not in use. Not fully charged as many sadly do.

I have several laptops, some are from the 90's, the batteries, when inserted, take a charge and appear to be "normal", but no in depth testing, sorry....so little help for anyone buying new today, with new technology - sadly....

I hope this helps further, but if you don't agree, thats fine, but don't try and take it out on me.....but I have been using Laptops since the first IBM Portable, quite some time (that one did not have a battery by the way and weighed something terrible!!! Probably 20 pounds.....or so.....a so called "Schlaptop", which means a heavy carry in bad German!! (From Schleppen!)

Joke.

A child is offered a sweet (candy) by its Mother, it asks "Mummy, what does it taste like?"

The Mother answers "Suck it and see!"

Which is about where we are with Laptop batteries....."So suck it and see!!"

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Andy Germany (1); DmanEng (1); europium mkII (2); Johny451 (1); JRaef (1); Kris (1); lyn (1); sohail0110 (1)

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